气候变化领域集成服务门户(CCPortal): Biomass partitioning pattern of Rheum tanguticum on the Qinghai-Tibet Plateau was affected by water-related factors

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DOI	10.1007/s11258-021-01122-8
	Biomass partitioning pattern of Rheum tanguticum on the Qinghai-Tibet Plateau was affected by water-related factors
	Xiong, Feng; Nie, Xiuqing; Yang, Lucun; Wang, Lingling; Li, Jingjing; Zhou, Guoying
通讯作者	Zhou, GY (通讯作者)，Northwest Inst Plateau Biol, CAS Key Lab Tibetan Med Res, Xining, Peoples R China.
发表日期	2021
ISSN	1385-0237
EISSN	1573-5052
起始页码	499
结束页码	509
卷号	222 期号:4
英文摘要	To identify the patterns of aboveground biomass (M-A) and belowground biomass (M-B) partitioning of a tall perennial herbal plant, Rheum tanguticum Maxim. ex Balf. (R. tanguticum), we determined M-A, M-B, total biomass (M-T), and below- to aboveground biomass ratio (M-B/M-A) through three consecutive sampling campaigns during 2016-2018 on the Qinghai-Tibetan plateau. We then documented M-A, M-B, M-T, and M-B/M-A, and their log-log relationship with environmental factors using data from 47 sites. M-B/M-A showed a significant negative relationship with mean annual precipitation (MAP) and altitude but a positive relationship with mean annual temperature (MAT), soil total nitrogen content (TN), and soil humidity (SH). While M-T increased with altitude and decreased with MAT, TN, and SH, but the relationship between MAP and M-T was not significant. Reduced major axis analysis revealed a slope of the log-log relationship between M-A and M-B to be 1.16, supporting an allometric partitioning pattern of R. tanguticum. Furthermore, the scaling exponent revealed different changes to different environmental factors. Specifically, scaling exponent was sensitive to the gradient of MAP and SH, but not to the gradient of altitude, MAT, or TN. This indicated that the scaling exponent was affected by water availability.
英文关键词	Rheum tanguticum; Qinghai– Tibet Plateau; Biomass partitioning; Environmental factors; Scaling exponent
语种	英语
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology ; Forestry
WOS类目	Plant Sciences ; Ecology ; Forestry
WOS记录号	WOS:000625780900001
来源期刊	PLANT ECOLOGY
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/253756
作者单位	[Xiong, Feng; Yang, Lucun; Wang, Lingling; Zhou, Guoying] Northwest Inst Plateau Biol, CAS Key Lab Tibetan Med Res, Xining, Peoples R China; [Xiong, Feng; Yang, Lucun; Wang, Lingling; Zhou, Guoying] Chinese Acad Sci, Northwest Inst Plateau Biol, Qinghai Key Lab Qinghai Tibet Plateau Biol Resour, Xining 810008, Peoples R China; [Xiong, Feng; Wang, Lingling] Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China; [Nie, Xiuqing] Chinese Acad Forestry, Key Lab Tree Breeding & Cultivat State Forestry A, Res Inst Forestry, Beijing 100091, Peoples R China; [Nie, Xiuqing] Chinese Acad Forestry, Res Inst Nat Protected Area, Beijing 100091, Peoples R China; [Li, Jingjing] Qinghai Normal Univ, Coll Life Sci, Xining 810008, Peoples R China
推荐引用方式 GB/T 7714	Xiong, Feng,Nie, Xiuqing,Yang, Lucun,et al. Biomass partitioning pattern of Rheum tanguticum on the Qinghai-Tibet Plateau was affected by water-related factors[J]. 中国科学院西北生态环境资源研究院,2021,222(4).
APA	Xiong, Feng,Nie, Xiuqing,Yang, Lucun,Wang, Lingling,Li, Jingjing,&Zhou, Guoying.(2021).Biomass partitioning pattern of Rheum tanguticum on the Qinghai-Tibet Plateau was affected by water-related factors.PLANT ECOLOGY,222(4).
MLA	Xiong, Feng,et al."Biomass partitioning pattern of Rheum tanguticum on the Qinghai-Tibet Plateau was affected by water-related factors".PLANT ECOLOGY 222.4(2021).